/Engine/Source/Editor/Sequencer/Public/ISequencerChannelInterface.h
Abstract interface that defines all sequencer interactions for any channel type Channels are stored internally as FMovieSceneChannel*, with this interface providing a common set of operations for all channels through a safe cast from the FMovieSceneChannel*. Implementations are found in TSequencerChanelInterface which calls overloaded free functions for each channel.
struct ISequencerChannelInterface